Level 2
A bag contains blue and green marbles in the ratio of 2 : 5. There is a total of 91 marbles in the bag. How many more blue marbles must be added into the bag so that the number of blue marbles will be the same as the number of green marbles?
2 m
Level 2
25% of the flowers Annie had were red. If she bought an equal number of red flowers, what percentage of the flowers would be red then?
2 m
Level 2
There was an equal number of boys and girls in the hall. When 10% of the girls left the hall, there were 5 more boys than girls remaining in the hall. How many children remained in the hall?
2 m
Level 1
Adam has blue and red stickers in the ratio of 5 : 2.
He has 30 more blue stickers than red stickers.
  1. How many stickers does Adam have?
  2. If Adam gives away 10 blue stickers, what is the new ratio of the number of blue stickers to blue stickers?
3 m
Level 2
Adam and Bryan have some stickers in the ratio of 3 : 2.
When Adam gives away 40 stickers,
the ratio of the stickers becomes 1 : 3.
  1. How many stickers do they have at first?
  2. How many stickers do they have in the end?
3 m